Raft Trailer Left Tail Light is Brighter and Turn Signal Does Not Work with Vehicle Lights On
Updated 04/21/2015 | Published 04/20/2015
Products Featured in This Question
Question:
I just installed a new set of LED lights on my raft trailer. The with the vehicle lights on the left trailer tail light is brighter and the turn indicator will not work. That is, the main lamp will not blink but the side lamps works With the lights off both indicators work fine. Grounds are clean and tight. Towing vehicle is a 2014 F150 Ford.
asked by: George S
Expert Reply:
Even though you have checked the grounds this does still sound symptomatic of a ground problem. Ground problems normally show up when there is more draw on a system such as when you have the running lights on and then use another function like a turn signal or brake light. Also make sure that the new light wires are connected to the correct wires on the trailer. The back of the light housing should indicate the function of each wire.
For example, light # STL9RB uses yellow for left turn signal and brake lights, brown for running lights, and white is ground. to test the wires on the trailer you can use a circuit tester such as # PTW2993.
Make sure that the vehicle side and trailer side connectors are clean and free of corrosion inside and out. The main connector grounds should be attached to clean and corrosion free bare metal surfaces.
The light grounds should also be attached to clean and corrosion free bare metal surfaces. If there is anything between a light ground and the metal trailer frame or if the trailer has an aluminum frame, tilt bed, or folding tongue, any of these things can interrupt the ground. Running jumper wires from the light grounds to the main trailer connector ground can help.
Product Page this Question was Asked From
Combination LED Trailer Tail Light - Submersible - 6 Function - 11 Diodes - Passenger Side
- Trailer Lights
- Tail Lights
- Rear Reflector
- Side Marker
- Side Reflector
- Stop
- Tail
- Turn
- Square
- Surface Mount
- Submersible Lights
- LED Light
- 5L x 5W Inch
- Red
- Optronics
more information >
Featured Help Information
Miscellaneous Media
Continue Researching
- Article: Trailer Wiring Diagrams
- Article: Trailer Lighting Requirements
- Q&A: Solution for Needing Replacement Caliper for Kodiak 204 Caliper
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Q&A: Will A Spare Tire With A Higher Load Rating Be Ok On A 2022 Aluma 7814ST?
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Article: Wiring Trailer Lights with a 4-Way Plug (It's Easier Than You Think)
- Article: Holiday 2025 | Staff Picks for Real-Life Adventures
- Q&A: Comparing Air Lift WirelessONE Compressor System AL25980EZ and AL25980
- Q&A: Are The DeeMaxx Hub/Rotor Assemblies Compatible With Kodiak 225 Calipers?
- Q&A: Replacement Motor for Klauber Slide Out Motor K01431B300
- Q&A: Parts Needed To Switch Trailer From Standard Ball Coupler To Pintle Hitch System
- Q&A: Dexter Electric Over Hydraulic Actuator Runs Constantly and Goes Through Brake Fluid Fast
- Article: Trailer Maintenance Schedule